Invention Grant
US09499481B2 Method for preparing lactames, comprising a photonitrosation step, followed by a Beckmann transposition step
有权
制备内酰胺的方法，包括光子离子化步骤，接着是Beckmann转置步骤
- Patent Title: Method for preparing lactames, comprising a photonitrosation step, followed by a Beckmann transposition step
- Patent Title (中): 制备内酰胺的方法，包括光子离子化步骤，接着是Beckmann转置步骤
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Application No.: US14252610Application Date: 2014-04-14
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Publication No.: US09499481B2Publication Date: 2016-11-22
- Inventor: Thierry Aubert
- Applicant: ARKEMA FRANCE
- Applicant Address: FR Colombes
- Assignee: ARKEMA FRANCE
- Current Assignee: ARKEMA FRANCE
- Current Assignee Address: FR Colombes
- Agency: Millen, White, Zelano and Branigan, P.C.
- Priority: FR0853419 20080526
- Main IPC: C07D201/04
- IPC: C07D201/04 ; C07D227/087 ; C07C249/06
Abstract:
The invention relates to a method for preparing lactames, according to which a photonitrosation of a cycloalkane is carried out using nitrosyl chloride (NOCI). According to the invention, said photonitrosation is carried out by means of LEDs emitting a monochromatic light. The method according to the invention can also include a step comprising Beckmann transposition/dechlorination of the oxime hydrochloride generated during said phonitrosation, preferably carried out in a glass microreactor.
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